Bosch radlonlcs D6412 - Sensor Loop Response Time; Table 4: Point Scan Time;Pulse Count Time Selections

Page 31© 2002 Radionics
D6412/D4412 Installation Guide
45349D
D6412/D4412
7.7 Sensor Loop Response Time
The panel scans both on and off-board sensor loops per Point Index programming. See Point Index
Configuration in the D6412/D4412 Program Entry Guide (P/N: 45351).
The panel scans sensor loops for ‘pulses’ (electrically off normal events). The Point Index determines the Pulse
Count and Pulse Count Time for each sensor loop. If the panel sees enough pulses within an interval defined by
the Pulse Count Time to reach the Pulse Count, it puts the sensor loop in a faulted condition.
The panel scans the sensor loops at one of two scan rates as shown in Table 4.
Pulse Count Time Selections for 50 ms
Point Scan Time (on-board points only)
Pulse Count Time Selections for 160 ms Point
Scan Time (on-and off-board points only)
Selection Actual Pulse Count Time Selection Actual Pulse Count Time
0
0.5 seconds
8
20 seconds
1
1 second
9
30 seconds
2
2 seconds
10
40 seconds
3
3 seconds
11
50 seconds
4
4 seconds
12
60 seconds
5
5 seconds
13
90 seconds
6
10 seconds
14
120 seconds
7
15 seconds
15
200 seconds
Table 4: Point Scan Time/Pulse Count Time Selections
The scan rates for off-board sensor loops are determined by the point expansion modules they are associated
with. The panel scans modules with off-board points at the 150 ms scan rate.
WARNING
Increasing the Pulse Count and Pulse Count Time may cause missed alarms. If you increase the Pulse
Count and Pulse Count Time, detection devices may go into alarm and reset without exceeding the
Pulse Count or Pulse Count Time.
Radionics recommends using the default settings for Pulse Count and Pulse Count Time.
Onboard Sensor Loops